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GB2358116B - Demodulation circuit and demodulation method with compensation for sampling offset - Google Patents

Demodulation circuit and demodulation method with compensation for sampling offset

Info

Publication number
GB2358116B
GB2358116B GB0104978A GB0104978A GB2358116B GB 2358116 B GB2358116 B GB 2358116B GB 0104978 A GB0104978 A GB 0104978A GB 0104978 A GB0104978 A GB 0104978A GB 2358116 B GB2358116 B GB 2358116B
Authority
GB
United Kingdom
Prior art keywords
demodulation
compensation
sampling offset
circuit
demodulation circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0104978A
Other versions
GB0104978D0 (en
GB2358116A (en
Inventor
Koichi Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP04563699A external-priority patent/JP3252820B2/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0104978D0 publication Critical patent/GB0104978D0/en
Publication of GB2358116A publication Critical patent/GB2358116A/en
Application granted granted Critical
Publication of GB2358116B publication Critical patent/GB2358116B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB0104978A 1999-02-24 2000-02-24 Demodulation circuit and demodulation method with compensation for sampling offset Expired - Fee Related GB2358116B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04563699A JP3252820B2 (en) 1999-02-24 1999-02-24 Demodulation and modulation circuit and demodulation and modulation method
GB0004418A GB2348786B (en) 1999-02-24 2000-02-24 Demodulation circuit and demodulation method with compensation for sampling offset

Publications (3)

Publication Number Publication Date
GB0104978D0 GB0104978D0 (en) 2001-04-18
GB2358116A GB2358116A (en) 2001-07-11
GB2358116B true GB2358116B (en) 2002-11-06

Family

ID=26243726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0104978A Expired - Fee Related GB2358116B (en) 1999-02-24 2000-02-24 Demodulation circuit and demodulation method with compensation for sampling offset

Country Status (1)

Country Link
GB (1) GB2358116B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527278A (en) * 1982-04-09 1985-07-02 U.S. Philips Corporation Method for correcting the frequency of a local carrier in a receiver of a data transmission system and receiver using this method
US5144256A (en) * 1990-12-31 1992-09-01 Samsung Electronics Co., Ltd. Method and apparatus for demodulating a GMSK signal
US5151926A (en) * 1991-05-21 1992-09-29 General Electric Company Sample timing and carrier frequency estimation circuit for sine-cosine detectors
EP0608717A2 (en) * 1993-01-14 1994-08-03 Nec Corporation Phase error canceller for QPSK signals using unique word detectors
US5337331A (en) * 1991-01-31 1994-08-09 Alcatel Telspace Method of coherent demodulation for phase shift keying and a device for implementing the method
US5343498A (en) * 1993-03-08 1994-08-30 General Electric Company Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
EP0716520A1 (en) * 1994-06-23 1996-06-12 Ntt Mobile Communications Network Inc. Cdma demodulation circuit and demodulating method
US5666378A (en) * 1994-03-18 1997-09-09 Glenayre Electronics, Inc. High performance modem using pilot symbols for equalization and frame synchronization
GB2319703A (en) * 1996-11-02 1998-05-27 Plessey Telecomm AFC in a DMT receiver
US5809009A (en) * 1995-09-13 1998-09-15 Matsushita Electric Industrial Co., Ltd. Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset
WO2000011814A1 (en) * 1998-08-20 2000-03-02 France Telecom Digital communication methods with distributed reference symbols

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527278A (en) * 1982-04-09 1985-07-02 U.S. Philips Corporation Method for correcting the frequency of a local carrier in a receiver of a data transmission system and receiver using this method
US5144256A (en) * 1990-12-31 1992-09-01 Samsung Electronics Co., Ltd. Method and apparatus for demodulating a GMSK signal
US5337331A (en) * 1991-01-31 1994-08-09 Alcatel Telspace Method of coherent demodulation for phase shift keying and a device for implementing the method
US5151926A (en) * 1991-05-21 1992-09-29 General Electric Company Sample timing and carrier frequency estimation circuit for sine-cosine detectors
EP0608717A2 (en) * 1993-01-14 1994-08-03 Nec Corporation Phase error canceller for QPSK signals using unique word detectors
US5343498A (en) * 1993-03-08 1994-08-30 General Electric Company Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
US5666378A (en) * 1994-03-18 1997-09-09 Glenayre Electronics, Inc. High performance modem using pilot symbols for equalization and frame synchronization
EP0716520A1 (en) * 1994-06-23 1996-06-12 Ntt Mobile Communications Network Inc. Cdma demodulation circuit and demodulating method
US5809009A (en) * 1995-09-13 1998-09-15 Matsushita Electric Industrial Co., Ltd. Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset
GB2319703A (en) * 1996-11-02 1998-05-27 Plessey Telecomm AFC in a DMT receiver
WO2000011814A1 (en) * 1998-08-20 2000-03-02 France Telecom Digital communication methods with distributed reference symbols

Also Published As

Publication number Publication date
GB0104978D0 (en) 2001-04-18
GB2358116A (en) 2001-07-11

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141023 AND 20141029

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180224